StatFunctions

 Hint: This features is available starting in version 4.1.0

Usage

Functions for the expression manager to count some statistics data :

• statCount(QuestionCode.sgqa[, submitted = true]) : count the number of already submitted answered questions by QuestionCode. You can count the number of submitted (= completed) surveys with statCount('sid') for example.
• statCountIf(QuestionCode.sgqa, value[, submitted = true]) : count the number of responses where answer to question QuestionCode equals value. The comparison uses Yii compare, you can use <, >, >=, <=, <> operator at start of your value.

You can find an example of the usage of these 2 functions in: survey_archive_statCountFunctionsTest inside the test directory.

This plugin uses the ExpressionManagerStart plugin and it creates two functions. These 2 functions don't use javascript, so the check is done only when the respondent moves ahead in the survey.

  Before using these functions : the plugin must be activated in Plugin Manager.

Example

• count number of submitted response : {statCount("id")}
• count number of responses (submitted or not) : {statCount("id", 0)}
• number of responses where respondent stopped at page 1 : {statCountIf("lastepage", 1, 0)}
• number of submitted responses with startlanguage "en" : {statCountIf("startlanguage", "en", 1)}
• number not completed responses to this survey : {sum(statCount("id", 0),statCount("id")*-1}